Meter-regulator.



No. 888,952. PATENTED MAY 26, 1908. T. B. WYLIE.

METER REGULATOR.

APPLIOATION ,IILBD JUNE 15, 1907.

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No. 888,952. PATENTED MAY 26, 1908.. T. B. WYLIE. METER REGULATOR.

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PATENTED MAY 26, 1908.

T. B. WYLIE. METER REGULATOR. APPLICATION FILED JUNE 15, 1907.

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THOMAS B. WYLIE, OF OSBORNE, PENNSYLVANIA.

ME TEE-RE GULATOR.

Specification of Letters Patent.

Patented May 26, 1908.

Application filed June 15, 1907. Serial No. 379,162.

To all whom it may concern:

Be it known that I, THoMAs B. WYLIE, of Osborne, Allegheny county, Pennsylvania, have invented a new and useful Improvement in Meter-Regulators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 is a top plan view of the meter provided with my improved regulator, the top being removed Fig. 2 is a sectional side elevation of the same Fig. 3 is a cross sectional view on the line HIIII of Fig. 2, and Fig. 4 is a view similar to Fig. 2 but at right angles thereto Figs. 5 and 6 are views of a modified form.

My invention relates to meters for gaseous fluids and especially to dry gas meters controlling the flow of gas to burners.

When gas meters are employed in buildings, it is desirable that the pressure at the burner should remain constant. Where a reducing valve is used at or near the inlet to the meter, the pressure at the burners does not remain constant since the friction loss in pressure in the meter increases as the volume increases. Consequently with increasing volumes the burner pressure becomes lowered below the proper amount with such constructions. This difliculty can be overcome by placing the reducing valve on the outlet from the gas meter. Such a structure would give a substantially constant pressure to the burner but is open to the serious objection of giving high pressure within the meter.

My invention is designed to overcome this difficulty while giving a low pressure in the meter; and consists in providing a pressure device which is acted upon by the gas leaving the meter, this pressure device being connected to a valve or controlling apparatus for the gas entering the meter. ner any variation in the pressure absorbed in the meter will be compensated for, since if the pressure starts to drop at the outlet, the pressure device at the outlet will open the inlet valve to give more volume and ,pressure.

In the drawings, I show the invention as applied to a dry gas meter of the type set forth in my co-pending application, Serial No. 340,331, filed October 24th, 1906, for dry gas meter. It will, however, be under- In this man stood that the system may be applied to any gas meter and may be varied widely in form and arrangement.

In the drawings, 2 represents the general case of the meter, having an upper transverse partition 3 on which is mounted the valve box 4, the bottom 5 of which forms the valve table. The inlet pipe 6 leads into the top of this valve case and into the elbow fixture '7, the outlet port 8 of which opens into the valve box and is controlled by valve 9 mounted on the curved rock arm 10 secured to rock shaft 11, (Fig. 5). This shaft is mounted in a suitable bearing 12 combined with the stuffing box 13 secured around a hole through the valve box through which the rock shaft extends. To the outer portion of the rock shaft 11 is secured the lever 14 which is pivoted at its other end to the hub 15 of a diaphragm plate 16 to which is secured one edge of the flexible diaphragm 17. The upper edge of this diaphragm is secured to the diaphragm chamber 18 from the top of which a small tube 19 leads through the top 20 of the meter chamber. This provides for atmospheric pressure on the one side of the diaphragm.

The gas which has been measured in the meter flows into the chamber 21 containing the diaphragm device and subjects the diaphragm plate to its pressure as it flows to the outlet 22 from the meter. It will therefore be clear that any variation in pressure of the gas flowing from the meter will shift the valve 9 controlling the flow of gas into the meter. A substantially constant pressure will therefore be preserved in the gas passing from the meter to the burners or other point of use.

In the form shown, 23 and 24 are D-valves operating on the valve table and connected tolinks 25 and 26. These links are secured to cranks on the vertical shaft 27 which extends through a stuffing box in the top of the valve box and is provided above the valve box with a crank driven by links 28 and 29 connected to the cranks 30 and 31. One valve controls three ports leading from the valve table, of which the two outer ports are inlet and the intermediate ports are exhaust ports for the gas. The two outer supply and exhaust ports lead into the diaphragm chambers shown at 32 and 33 of which two are preferably employed for each D'valve.

shaft 42.

These diaphragms may be operated in the j usual manner and form no part of my presj ent invention.

Instead of building the meter with the regulator device as a part thereof, 1 may construct the regulator as a separate attachl ment which can be applied to any desirable j form of meter. Thus, in Figs. 5 and 6, I show a meter 34 having an inlet pipe 35 and an outlet pipe 36. To the pipes 35 and 36 are secured by suitable pipe unions or couplings, a gas box having a large chamj ber 37 and a smaller chamber 38 separated i by the partition wall 39. The gas enters the chamber 38 through pipe 40 and is controlled by the valve 41 secured to rock This rock shaft is mounted in suitable bearings, and at one side extends througha stuffing box 42 secured to the Wall 39. To the protruding end of this shaft is secured a curved lever arm 43, the other end of which is pivoted to the diaphragm plate 44 of a diaphragm chamber 45 in the outlet gas chamber 37. The gas passing out through pipe 36 enters the chamber 37, and thence passes to the second outlet pipe 46. In this case as before, the pressure of the outgoing gas acting on the diaphragm controls the position of the throttling inlet valve. This form may be attached to existing meters.

The advantages of my invention will be apparent to those skilled in the art, since the desirable uniform pressure beyond the meter I is obtained without the use of high pressure in the meter. l

The invention may be applied to any type of meter or measuring defice for gaseous l fluids and the regulating apparatus may be Widely varied without departing from my i I i invention; since I consider myself the first to provide a meter with an inlet valve which is controlled by the pressure of the outgoing fluid.

I claim 1. The combination with a meter, of an inlet valve therefor and a pressure device controlled by the out-going fluid and connected to said valve, the pressure device be ing open to the atmosphere on one side thereof; substantially as described.

2. A dry gas meter having an.inlet valve controlling the flow into the meter, a diaphragm pressure device subjected to the pressure of the out-going fluid on one side thereof and to atmospheric pressure on the other side and a connection between the movable member of the pressure device and the inlet valve; substantially as described.

3. A meter having an inlet control valve, a chamber subjected to the pressure of the gas flowing from the meter, a pressure device in said chamber open to atmospheric pressure on one side thereof and a connection extending between the pressure device and the inlet valve; substantially as described.

4. A gas meter having an inlet control valve, a chamber subjected to the pressure of the out-flowing fluid, a pressure device in said chamber and open to atmospheric pressure on one side thereof, a stuffing box between the outflowing fluid chamber and the inlet control valve, and a mechanical connection extending through the stuffing box or sealing device from the pressure device to the inlet valve, substantially as described.

In testimony whereof, I have hereunto set my hand.

THOMAS B. l/VYLIE. lVitnesses:

JOHN MILLER, H. M. CORWIN. 

